I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
hyphens phons phones phonos phoneys phonies fens venus fohns veins foehns veenas venose venous venues faenas fewness feyness
hyphens hens pens phons peans peens peins penes penis peons wheens whenas whens sheens ens